A signal transmitted via phosphorylation of a series of proteins is generally associated with which of the following events? A. conformational changes to each protein in the series B. binding of a hormone to an intracellular receptor C. activation of a ligand-gated ion channel D. production of ATP in the process of signal transduction g

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Which of the following typically characterizes a tropical rainforests